<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <Header :addTodo="addTodo" />
        <List :todos="todos" :checkOne="checkOne" :deleteTodo="deleteTodo" />
        <Footer
          v-show="todos.length"
          :todos="todos"
          :checkAll="selectAll"
          :clearAllDone="clearAllDone"
        />
      </div>
    </div>
  </div>
</template>

<script lang="ts">
import { defineComponent } from "vue";

export default defineComponent({
  name: "App",
});
</script>

<script setup lang="ts">
import { reactive, watch } from "vue";
import Header from "./components/Header.vue";
import List from "./components/List.vue";
import Footer from "./components/Footer.vue";
export interface Todo {
  id: string;
  title: string;
  done: boolean;
}

let todos = reactive<Todo[]>(
  JSON.parse(localStorage.getItem("todos") as string) || []
);

watch(todos, (value) => {
  localStorage.setItem("todos", JSON.stringify(value));
});

const addTodo = (todo: Todo) => {
  todos.unshift(todo);
};

const checkOne = (id: string, done: boolean) => {
  const result = todos.find((item) => item.id === id) as Todo;
  result.done = done;
};

const deleteTodo = (id: string) => {
  let index = todos.findIndex((item) => item.id === id);
  todos.splice(index, 1);
};

// 全选
const selectAll = (done: boolean) => {
  todos.forEach((item) => (item.done = done));
};

const clearAllDone = () => {
  let result = todos.filter((item) => !item.done);
  todos.splice(0, todos.length, ...result);
  console.log(todos);
};
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}

.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
